S-90434A138 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in various industrial environments
• Excellent thread-forming capability with tri-lobe shank design, providing secure, vibration-resistant fastening in plastic materials
• Effortless installation thanks to Phillips No. 2 drive and blunt tip, reducing assembly time and tool wear
• Flush, professional finish with standard flat head and 82° countersink angle, ideal for applications requiring a smooth surface
• Reliable full-thread engagement across the 1-1/4" length, maximizing pull-out strength and load distribution in plastic assemblies
• Wide compatibility with No. 15 drill bit (0.18" diameter), simplifying hole preparation and ensuring precise fit
• Environmental compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable manufacturing practices

Professional Applications & Engineering Value

These No. 10 x 1-1/4" zinc-plated steel TRS tapping screws deliver exceptional engineering value for plastic fastening applications. The thread-forming TRS design with tri-lobe shank creates strong, permanent threads in plastic substrates without cracking or stress concentration. This eliminates the need for pre-tapped holes, reducing assembly steps and labor costs. The 82° countersink angle and flat head profile ensure a flush installation, preventing snagging and maintaining aesthetic integrity in consumer products, electronic enclosures, and automotive plastic components. The zinc-plated steel construction provides reliable corrosion protection, while the Phillips No. 2 drive offers familiar, efficient installation for high-volume production environments.

Specification Summary & Compliance

These thread-forming tapping screws feature a No. 10 thread diameter (0.19") with approximately 14 threads per inch and right-hand threading. Manufactured to standard flat head profile specifications with 1-1/4" fully threaded length and tri-lobe shank cross-section. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial and consumer applications worldwide.